8
reptiles(noun, type, species, classification)
4
amphibians(noun, type, species, classification)
3
cnidarians(noun, type, species, classification)
3
bird(noun, animal, type, classification)
2
arthropods(noun, type, species, classification)
2
birds(noun, type, species, classification)
2
ctenophores(noun, type, species, classification)
2
fish(noun, animal, type, classification)
2
flatworms(noun, type, species, classification)
2
invertebrates(noun, type, species, classification)
2
nematodes(noun, type, species, classification)
1
amphibia(noun, type, species, classification)
1
annelids(noun, type, species, classification)
1
aves(noun, type, species, classification)
1
molluscs(noun, type, species, classification)
1
reptilia(noun, type, species, classification)
1
sponges(noun, type, species, classification)
-1
amphibian(type, species, classification)
-1
insect
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APASmart Define. (2015). mammal thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/mammal/thesaurus/antonyms
ChicagoSmart Define. 2015. "mammal thesaurus" https://smartdefine.org/mammal/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2015, mammal thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/mammal/thesaurus/antonyms>.
MLASmart Define. "mammal thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/mammal/thesaurus/antonyms>